CN110036903B - Large-scale seedling raising facility for sargassaceae algae and use method thereof - Google Patents
Large-scale seedling raising facility for sargassaceae algae and use method thereof Download PDFInfo
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- CN110036903B CN110036903B CN201910484529.8A CN201910484529A CN110036903B CN 110036903 B CN110036903 B CN 110036903B CN 201910484529 A CN201910484529 A CN 201910484529A CN 110036903 B CN110036903 B CN 110036903B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G33/00—Cultivation of seaweed or algae
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D25/00—Control of light, e.g. intensity, colour or phase
- G05D25/02—Control of light, e.g. intensity, colour or phase characterised by the use of electric means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
The invention discloses a sargassum large-scale seedling raising facility which comprises a spraying system and a circulating filtration system, wherein the spraying system is used for spraying sargassum; a seedling raising platform is arranged in the seedling raising pond, and a central column is arranged in the middle of the seedling raising platform; the spraying system comprises a bracket and a spray head, and the spray head is fixedly arranged at the top end of the central column through the bracket; the filtering system comprises a seawater filtering box, a seawater recovery pipeline, a seawater recovery tank and a seawater conveying pipeline, wherein the seawater filtering box is placed at the bottom of the seedling culture tank, the seawater filtering box is communicated with the seawater recovery tank through the seawater recovery pipeline, a seawater conveying pump connected with a water outlet of the seawater recovery pipeline is installed in the seawater recovery tank, a water inlet of the seawater conveying pipeline is connected with the seawater recovery tank, and a water outlet of the seawater conveying pipeline is connected with a spray head. According to the invention, the efficient and large-scale seedling culture of sargassum algae is realized through the accurate control and reasonable daily management of environmental conditions in the seedling culture process.
Description
Technical Field
The invention belongs to the technical field of seaweed cultivation, and particularly relates to a sargassum large-scale seedling raising facility and a using method thereof.
Background
Sargassum of Sargassaceae is a large-scale Sargassum with high economic value, and has important development and application prospects in the fields of cultivation, medicine and health care, biological products, food processing, aquatic feeds, seaweed fertilizers, chemical industry, marine ecological environment protection and the like. In recent years, the amount of wild resources is drastically reduced due to pollution and excessive harvesting in offshore areas.
At present, the artificial seedling process of sargassaceae algae is carried out in a cement pond with a single function, and the following technical defects mainly exist: (1) before picking seedlings, the seed vegetables are dried in a transfer box in the shade and then transferred into a seedling growing pond; (2) the seedling collecting attachment base needs to be laid at the bottom of the seedling culture pond and fixed, so that foreign algae are easy to grow, difficult to remove, and low in efficiency and high in manual labor intensity, and frequent spray washing and pond pouring are needed; (3) illumination intensity's regulation in the pond of growing seedlings is through artifical real-time measurement illumination intensity in the plant of growing seedlings to carry out the operation of receiving and releasing of sunshade net according to the parameter, this kind of mode of adjusting luminance is not only effectual, can cause the pond of growing seedlings internal surface light too strong, and bottom of the pool light is too weak, is unfavorable for the growth of adopting seedling and seedling.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a sargassum seedling raising facility in large scale, so that the accurate control of environmental conditions in the seedling raising process is facilitated, and the daily management is facilitated.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a large-scale seedling raising facility for Sargassum of Sargassaceae comprises a seedling raising pool, a spraying system and a circulating filtration system; a seedling raising platform is arranged in the seedling raising pool, four corners of the seedling raising platform are respectively supported by a stand column, and a central column is arranged in the middle of the seedling raising platform; the spraying system comprises a bracket and a spray head, and the spray head is fixedly arranged at the top end of the central column through the bracket; the filtering system comprises a seawater filtering box, a seawater recovery pipeline, a seawater recovery tank and a seawater conveying pipeline, wherein the seawater filtering box is placed at the bottom of the seedling culture tank, the seawater filtering box is communicated with the seawater recovery tank through the seawater recovery pipeline, a seawater conveying pump connected with a water outlet of the seawater recovery pipeline is installed in the seawater recovery tank, a water inlet of the seawater conveying pipeline is connected with the seawater recovery tank, and a water outlet of the seawater conveying pipeline is connected with a spray head.
Preferably, the seedling raising pond is a rectangular cement pond, and the specification is that the length is 10-20m, the width is 3-4m, and the depth is 0.8-1 m.
Preferably, the table surface of the seedling raising table is formed by connecting a plurality of groups of anti-corrosion wood plates which are arranged in parallel, and the adhesion base is placed on the seedling raising table.
Further, the table top of the seedling raising platform is parallel to the bottom of the seedling raising pool and is 20-30cm away from the bottom of the seedling raising pool; the length of the table top of the seedling raising platform is 30-50cm smaller than that of the seedling raising pool, and the width of the table top of the seedling raising platform is 30-50cm smaller than that of the seedling raising pool.
Preferably, the spray head is a water-through automatic rotating spray head, the spray head is of a three-arm type, and each arm is provided with 4 water spray holes facing the seedling raising platform; and the water spraying directions of the 4 water spraying holes on each arm are different from the included angle formed by the axis of the arm, and the included angle is-45 degrees to +45 degrees.
Preferably, the seawater filter box is internally provided with filter cotton and active carbon for filtering sundries in the seedling culture pond.
Preferably, the seawater conveying pipeline is provided with a seawater conveying controller for regulating and controlling the flow speed and flow of seawater.
Furthermore, the seedling raising facility also comprises a light adjusting system, wherein the light adjusting system comprises a light reflecting component fixed on the inner side wall of the seedling raising pool, a controller arranged outside the seedling raising pool and an illumination sensor arranged on the seedling raising platform; the illumination sensor is fixed inside the seedling raising pond, and the controller is electrically connected with the illumination sensor; reflecting light subassembly includes connecting rod, carriage and movable mounting many blades in the carriage, and the upper and lower both ends difference fixed mounting of every blade has a pivot, set up the perforation that makes the pivot stretch out on the carriage, all install a carousel in every pivot, lie in and pass through the connecting rod with the carousel of one side and link to each other, install on the carriage and drive carousel pivoted motor, electric connection between motor and the controller.
Preferably, the reflecting assemblies are in multiple groups and are arranged on the inner side wall of the seedling raising pool in parallel; the supporting frame is a titanium magnesium alloy frame with the width of 100-150cm and the height of 80 cm; the blade is a mirror aluminum-plastic plate with the length of 80cm and the width of 10-20 cm.
Further, a method for cultivating gulfweed algae seedlings by using the seedling cultivating facility specifically comprises the following steps:
(1) and (3) seedling picking preparation:
1 month before picking the seedlings, constructing a seedling raising pool, adding fresh water to soak for 10 days, drying in the sun for 10 days, and then soaking in seawater for 10 days;
(2) processing of the seed vegetables:
collecting sargassum species of Sargassaceae, placing on a seedling raising table for shade drying treatment, and adjusting the illumination intensity on the seedling raising table to be 1500-2500 lx by using a dimming system;
(3) seedling picking:
injecting filtered seawater into the seedling raising pool until the water storage height in the seedling raising pool is 50-60 cm, so that the seed vegetables subjected to shade drying float on the water surface, flatly paving and fixing an attachment base on a seedling raising platform, and taking out the seed vegetables when the seedling picking density reaches 30/cm 2;
(4) early seedling cultivation:
after 48 hours of seedling picking, emptying the seawater in the seedling raising pool, and replacing fresh filtered seawater until the water storage height in the seedling raising pool is 50-60 cm;
(5) daily management:
regularly clear up the nursery pond, before the clearance, stop circulating filter system and spraying system's operation, discharge the sea water below the platform of growing seedlings, wash the nursery pond, spray rinsing the adhesion base if necessary, then change fresh filtration sea water and grow seedlings on the platform 20~30cm, start circulating filter system and spraying system and continue the operation.
Preferably, in the step (1), the illumination intensity on the seedling raising platform is controlled to be 3000-4000 lx.
Preferably, in the step (4), when the cultivation is started, the illumination intensity on the seedling raising platform is controlled to be 3000-4000 lx; adjusting the illumination intensity on the seedling raising platform to 4000-6000 lx when the seedlings are cultured for 4 days; and adjusting the illumination intensity of the seedling raising platform to be 6000-10000 lx when the seedlings are cultured for 7 days.
Compared with the prior art, the invention has the advantages that:
(1) according to the invention, the shade drying treatment of the seed vegetables can be conveniently realized through the arrangement of the seedling raising platform, and the pond reversing and related cleaning work of the seedling raising attaching base are omitted.
(2) The dimming system can achieve the purpose of adjusting the illumination intensity in the seedling raising pool in real time according to different requirements of different stages of seedling collection and early seedling culture on illumination conditions.
(3) The spraying system provided by the invention increases the flow of seawater in the seaweed seedling raising pool, and realizes a proper water flow environment in the seedling raising process.
(4) The circulating filtration system can remove impurities in water in time and purify water quality.
(5) The seedling raising method simplifies the management of the seedling raising pool, is simple and convenient to operate, and saves the labor cost.
In conclusion, the seedling raising facility and the seedling raising method provided by the invention realize efficient and large-scale seedling raising of sargassum through accurate control of environmental conditions and reasonable daily management in the seedling raising process, and have good application prospects.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of the overall structure of a sargassaceae algae seedling facility according to the present invention;
FIG. 2 is an enlarged schematic view of a reflector assembly according to the present invention;
FIG. 3 is a partially enlarged schematic view at the turntable;
FIG. 4 is an enlarged schematic view of the spray system of the present invention;
reference numerals: 1. a seedling raising pond; 2. a seedling raising platform; 3. a central column; 4. a column; 501. a support frame; 502. a blade; 503. a rotating shaft; 504. a turntable; 505. a connecting rod; 506. a motor; 507. fixing the rod; 6. an illumination sensor; 7. a controller; 8. a seawater filter box; 9. a seawater recovery pipeline; 10. a seawater delivery pipeline; 11. a seawater recovery pond; 12. a seawater delivery pump; 13. a seawater delivery controller; 14. a spray head; 141. an arm; 142. a water spray hole; 15. and (4) a bracket.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example 1
As shown in fig. 1-4, a sargassum seedling raising facility in large scale comprises a seedling raising pool 1, a seedling raising platform 2, a dimming system, a spraying system and a circulating filtration system, which are specifically as follows.
The seedling raising pond 1 is a rectangular cement pond, and the specification is that the length is 10-20m, the width is 3-4m, and the depth is 0.8-1 m. Seedling raising platform 2 is located the inside of growing seedlings pond 1, seedling raising platform 2's four corners supports through a stand 4 respectively, seedling raising platform 2's intermediate position is installed center post 3. The table surface of the seedling raising table 2 is formed by connecting a plurality of groups of anti-corrosion wood plates which are arranged in parallel; the table surface of the seedling raising table 2 is parallel to the bottom of the seedling raising pool 1 and is 20-30cm away from the bottom of the seedling raising pool 1; the length of the table top of the seedling raising platform 2 is 30-50cm smaller than that of the seedling raising pool 1, and the width of the table top of the seedling raising platform 2 is 30-50cm smaller than that of the seedling raising pool 1. An adhesive base (not shown) can be placed on the seedling raising platform 2.
The dimming system comprises a light reflecting component fixed on the inner side wall of the seedling raising pool 1, a controller 7 arranged outside the seedling raising pool 1 and an illumination sensor 6 used for monitoring illumination intensity in the seedling raising pool 1. The illumination sensor 6 is fixed at the position of the central column 3 of the seedling raising platform 2, and the controller 7 is electrically connected with the illumination sensor 6. The reflecting components are multiple groups and are arranged on the inner side wall of the seedling raising pool 1 in parallel, and the reflecting components are fixed on the inner side wall of one or two or three or four sides of the seedling raising pool 1. The reflecting component comprises a connecting rod 505, a supporting frame 501 and a plurality of blades 502 movably arranged in the supporting frame, wherein the blades 502 are transversely arranged and are parallel to the bottom of the nursery pond 1. The supporting frame 501 is a titanium-magnesium alloy frame with the width of 100-150cm and the height of 80 cm; the support frame 501 is fixed on the inner side wall of the seedling raising pond 1. The blade 502 is a mirror aluminum-plastic plate with the length of 80cm and the width of 10-20 cm. The upper end and the lower end of each blade 502 are respectively fixedly provided with a rotating shaft 503, the supporting frame 501 is provided with a through hole (not shown in the figure) for extending the rotating shaft 503, each rotating shaft 503 is provided with a turntable 504, the turntable 504 positioned at the same side is connected with the connecting rod 505 through a fixing rod 507, the supporting frame is provided with a motor 506 capable of driving the turntable to rotate, and the motor 506 is electrically connected with the controller 7. The illumination sensor 6 monitors the illumination intensity in the seedling raising pond 1, transmits the monitored illumination intensity signal to the controller 7, and the controller 7 controls the motor 506 to rotate, so that the motor 506 drives the turntable 504 to drive the blade 502 to rotate to a proper angle, and the illumination intensity in the seedling raising pond 1 is always in an optimal state. The seedling raising efficiency and quality of the seaweed are improved by realizing effective systemic control of illumination conditions in the seaweed breeding process.
The spray system includes a holder 15 and a spray head 14. The spray head 14 is fixedly arranged at the top end of the central column 3 through a bracket 15. The spray head 14 is a water-through automatic rotating spray head, the spray head 14 is of a three-arm type, and each arm 141 is provided with 4 water spray holes 142 facing the seedling raising platform 2; and the water spraying directions of the 4 water spraying holes 142 on each arm 141 are different from the included angle (not shown in the figure) formed by the axis of the arm 141, the included angle is-45 degrees to +45 degrees, so that each water spraying hole 142 sprays the seawater to different positions of the seedling raising platform 2 at different angles.
The filtering system comprises a seawater filtering box 8, a seawater recycling pipeline 9, a seawater recycling pool 11 and a seawater conveying pipeline 10. The seawater filter box 8 is arranged at the bottom of the seedling raising pond 1, and the inside of the seawater filter box 8 is arranged in filter cotton and active carbon for filtering sundries in the seedling raising pond 1. The seawater filter box 8 is communicated with a seawater recovery tank 11 through a seawater recovery pipeline 9, a seawater delivery pump 12 connected with a water outlet of the seawater recovery pipeline 9 is installed in the seawater recovery tank 11, a water inlet of the seawater delivery pipeline 10 is connected with the seawater recovery tank 11, and a water outlet of the seawater delivery pipeline 10 is connected with a spray head 14. And a seawater conveying controller 13 for regulating and controlling the flow speed and flow of seawater is arranged on the seawater conveying pipeline 10.
Example 2
A method for raising seedlings of sargassum by using the seedling raising facility of embodiment 1, which specifically comprises the following steps:
(1) preparation of seedling
1 month before picking the seedlings, constructing a seedling raising pool, adding fresh water to soak for 10 days, drying in the sun for 10 days, and then soaking in seawater for 10 days.
(2) Processing of seed vegetables
After seaweed seeds of sargassaceae are collected, the seaweed seeds are placed on a seedling raising table for shade drying treatment, and the illumination intensity on the seedling raising table is adjusted to be 1500-2500 lx by using a dimming system.
(3) Collecting seedling
Injecting filtered seawater into the seedling raising pond until the water storage height in the seedling raising pond is 50-60 cm, floating the seed vegetables subjected to shade drying on the water surface, flatly paving and fixing the attaching bases on the seedling raising platform, controlling the illumination intensity on the seedling raising platform to be 3000-4000 lx, and taking out the seed vegetables after the actual required seedling picking density is achieved.
(4) Early stage cultivation of seedlings
After 48 hours of seedling picking, emptying the seawater in the seedling raising pool, and replacing the fresh filtered seawater to the water storage height in the seedling raising pool
The illumination intensity on the seedling raising platform is controlled to be 3000-4000 lx, wherein the illumination intensity is 50-60 cm; adjusting the illumination intensity on the seedling raising platform to 4000-6000 lx when the seedlings are cultured for 4 days; and adjusting the illumination intensity of the seedling raising platform to be 6000-10000 lx when the seedlings are cultured for 7 days.
(5) Daily management
Regularly clear up the nursery pond, before the clearance, stop circulating filter system and spraying system's operation, discharge the sea water below the platform of growing seedlings, wash the nursery pond, spray rinsing the adhesion base if necessary, then change fresh filtration sea water and grow seedlings on the platform 20~30cm, start circulating filter system and spraying system and continue the operation.
Example 3
The seedling raising facility and the traditional cement seedling raising pond are respectively adopted to carry out sargassum muticum (sargassaceae, sargassum) seedling raising, after 10 days of seedling raising, 3 seedling curtains are randomly selected, 3 sections of 10cm seedling ropes are respectively cut, the specific growth rate and the chlorophyll a content of each section of seedling rope are determined by selecting an alga body, and the result is shown in table 1.
TABLE 1 comparison of specific growth rate and chlorophyll a content for sargassum muticum seedlings by different seedling raising methods
| The invention | Comparative example | |
| Specific growth rate | 2.88±0.08 | 2.43±0.05 |
| Chlorophyll a content | 0.37±0.04mg/g | 0.42±0.03mg/g |
Specific growth rate (RGR) determination method: the water on the surface of the algae is sucked by filter paper and is weighed to be fresh weight, and the RGR has the following calculation formula: RGR ═ [ (Wt/W0)1/t-1] × 100, where Wt is the fresh weight of algal bodies at the end of the experiment (g), W0 is the fresh weight of algal bodies at the start of the experiment (g), and t is the cultivation time (d).
The chlorophyll a content determination method comprises the following steps: 0.1g of fresh algal bodies are ground into pulp, 8mL of 80% acetone is added, and the mixture is extracted for 24 hours in the dark at 4 ℃. Centrifuging the leaching solution at 4 ℃ at 4000 r/min for 10min, and taking supernatant to be constant volume to 10 mL. The absorbance at 665 and 652nm was measured spectrophotometrically using 80% acetone as a blank. The chlorophyll a content is calculated according to the formula W (Chl-a) ═ (16.29OD 665-8.54 OD652) × V/W/1000, wherein V is the volume of acetone extracted (mL) and W is the mass of algae (g) in mg/g.
From table 1, it can be seen that when the seedling raising facility of the present invention is adopted to raise sargassum muticum seedlings, the specific growth rate of the seedlings is significantly higher than that of the control example (P <0.05), and the content of chlorophyll a is significantly lower than that of the control example (P <0.05), and the seedling raising facility of the present invention can significantly improve the quality and seedling raising efficiency of the sargassum muticum seedlings.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (4)
1. A method for seedling raising of Sargassum by using seedling raising facilities is characterized in that the seedling raising facilities comprise seedling raising ponds, spraying systems and circulating filtering systems, seedling raising platforms are arranged in the seedling raising ponds, the table tops of the seedling raising platforms are formed by connecting a plurality of groups of anti-corrosion wood plates which are arranged in parallel, and attaching bases are placed on the seedling raising platforms; four corners of the seedling raising platform are respectively supported by an upright post, and a central post is arranged in the middle of the seedling raising platform; the spraying system comprises a bracket and a spray head, and the spray head is fixedly arranged at the top end of the central column through the bracket; the circulating filtration system comprises a seawater filter box, a seawater recovery pipeline, a seawater recovery pool and a seawater conveying pipeline, wherein the seawater filter box is placed at the bottom of the seedling culture pool and is communicated with the seawater recovery pool through the seawater recovery pipeline;
filter cotton and active carbon for filtering sundries in the seedling culture pond are placed in the seawater filter box;
the spray head is a water-through automatic rotating spray head, the spray head is of a three-arm type, and each arm is provided with 4 water spray holes facing the seedling raising platform; the water spraying directions of the 4 water spraying holes on each arm are different from the included angle formed by the axis of the arm, and the included angle ranges from minus 45 degrees to plus 45 degrees;
the seedling raising facility also comprises a light adjusting system, wherein the light adjusting system comprises a light reflecting component fixed on the inner side wall of the seedling raising pool, a controller arranged outside the seedling raising pool and an illumination sensor used for monitoring the illumination intensity in the seedling raising pool; the illumination sensor is fixed at the position of the central column of the seedling raising platform, and the controller is electrically connected with the illumination sensor; the seedling raising pond is characterized in that the seedling raising pond is provided with a plurality of groups of light reflecting assemblies, the light reflecting assemblies are arranged on the inner side walls of the seedling raising pond in parallel, and the light reflecting assemblies are fixed on the inner side walls of one side or two sides or three sides or four sides of the seedling raising pond; the light reflecting assembly comprises a connecting rod, a supporting frame and a plurality of blades movably arranged in the supporting frame, and the blades are transversely arranged and are parallel to the bottom of the seedling raising pool;
the method for cultivating the gulfweed seaweed seedlings by using the seedling cultivating facilities specifically comprises the following steps:
(1) and (3) seedling picking preparation:
1 month before picking the seedlings, constructing a seedling raising pool, adding fresh water to soak for 10 days, drying in the sun for 10 days, and then soaking in seawater for 10 days; controlling the illumination intensity on the seedling raising platform to be 3000-4000 lx;
(2) processing of the seed vegetables:
collecting sargassum species of Sargassaceae, placing on a seedling raising table for shade drying treatment, and adjusting the illumination intensity on the seedling raising table to be 1500-2500 lx by using a dimming system;
(3) seedling picking:
injecting filtered seawater into the seedling raising pool until the water storage height in the seedling raising pool is 50-60 cm, floating the seed vegetables subjected to shade drying on the water surface, flatly laying and fixing an attachment base on a seedling raising platform, and collecting the seedlings with the density of 30/cm2Then, taking out the seed vegetables;
(4) early seedling cultivation:
after 48 hours of seedling picking, emptying the seawater in the seedling raising pool, and replacing fresh filtered seawater until the water storage height in the seedling raising pool is 50-60 cm; when the cultivation is started, controlling the illumination intensity on the seedling raising platform to be 3000-4000 lx; adjusting the illumination intensity on the seedling raising platform to 4000-6000 lx when the seedlings are cultured for 4 days; adjusting the illumination intensity of the seedling raising platform to 6000-10000 lx when the seedlings are cultured for 7 days;
(5) daily management:
the seedling raising pond is cleaned regularly, before cleaning, the operation of the circulating filter system and the spraying system is stopped, seawater is discharged to the position below the seedling raising platform, the seedling raising pond is cleaned, then fresh filtered seawater is replaced to the position 20-30cm above the seedling raising platform, and the circulating filter system and the spraying system are started to continue to operate.
2. The method for raising Sargassum seedlings by using a seedling raising facility as claimed in claim 1, wherein: the seedling raising pond is a rectangular cement pond, and the specifications of the seedling raising pond are that the length is 10-20m, the width is 3-4m, and the depth is 0.8-1 m.
3. The method for raising Sargassum seedlings by using a seedling raising facility as claimed in claim 1, wherein: the table surface of the seedling raising table is parallel to the bottom of the seedling raising pool and is 20-30cm away from the bottom of the seedling raising pool; the length of the table top of the seedling raising platform is 30-50cm smaller than that of the seedling raising pool, and the width of the table top of the seedling raising platform is 30-50cm smaller than that of the seedling raising pool.
4. The method for raising Sargassum seedlings by using a seedling raising facility as claimed in claim 1, wherein: and a seawater conveying controller for regulating and controlling the flow speed and flow of seawater is arranged on the seawater conveying pipeline.
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